Import of old calender entries Rated 2 out of 5 stars

With the update the calender entries were gone. So I looked for help and followed the explanation of Photogryph (27.10.07). After exporting the calender entries I installed 0.7 version again. BUT the import does not work. Although I have the right icf-file. Can somebody help me? What's going wrong?

This review is for a previous version of the add-on (0.7).